EPA Air · stack tests by county and year
Air-emissions stack tests in Jefferson County, Ohio, 2026
- 75Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Jefferson County, Ohio during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Jefferson County facility page.
Air-emissions stack tests in Jefferson County, other years
Air-emissions stack tests recorded in Jefferson County, Ohio, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-11 | ASCENT RESOURCES - UTICA LLC - FAUNA WEL JF | Pass | State |
| 2026-08-11 | ASCENT RESOURCES - UTICA LLC - FAUNA WEL JF | Pass | State |
| 2026-08-11 | ASCENT RESOURCES - UTICA LLC - FAUNA WEL JF | Pass | State |
| 2026-07-28 | ASCENT RESOURCES - UTICA LLC - ROXY CRC JF | Pass | State |
| 2026-07-28 | ASCENT RESOURCES - UTICA LLC - ROXY CRC JF | Pass | State |
| 2026-07-28 | ASCENT RESOURCES - UTICA LLC - ROXY CRC JF | Pass | State |
| 2026-07-28 | ASCENT RESOURCES - UTICA LLC - KELPIE WEL JF | Pass | State |
| 2026-07-28 | ASCENT RESOURCES - UTICA LLC - KELPIE WEL JF | Pass | State |
| 2026-07-28 | ASCENT RESOURCES - UTICA LLC - KELPIE WEL JF | Pass | State |
| 2026-07-23 | ASCENT RESOURCES - UTICA LLC - BORUM SMF JF | Pass | State |
| 2026-07-23 | ASCENT RESOURCES - UTICA LLC - BORUM SMF JF | Pass | State |
| 2026-07-23 | ASCENT RESOURCES - UTICA LLC - BORUM SMF JF | Pass | State |
| 2026-07-23 | ASCENT RESOURCES - UTICA LLC - RONALD SMF JF | Pass | State |
| 2026-07-23 | ASCENT RESOURCES - UTICA LLC - RONALD SMF JF | Pass | State |
| 2026-07-23 | ASCENT RESOURCES - UTICA LLC - RONALD SMF JF | Pass | State |
| 2026-07-22 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | Pass | State |
| 2026-07-22 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | Pass | State |
| 2026-07-22 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | Pass | State |
| 2026-07-22 | ASCENT RESOURCES - UTICA LLC - ZEDS MTP JF | Pass | State |
| 2026-07-22 | ASCENT RESOURCES - UTICA LLC - ZEDS MTP JF | Pass | State |
| 2026-07-22 | ASCENT RESOURCES - UTICA LLC - ZEDS MTP JF | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-26 | WILLIAMS - SALEM COMPRESSOR STATION | Pass | State |
| 2026-06-19 | ASCENT RESOURCES - UTICA LLC - COLAIANNI MTP JF | Pass | State |
| 2026-06-19 | ASCENT RESOURCES - UTICA LLC - COLAIANNI MTP JF | Pass | State |
| 2026-06-19 | ASCENT RESOURCES - UTICA LLC - COLAIANNI MTP JF | Pass | State |
| 2026-06-18 | ASCENT RESOURCES - UTICA LLC - JACK HAMILTON SMF JF | Pass | State |
| 2026-06-18 | ASCENT RESOURCES - UTICA LLC - JACK HAMILTON SMF JF | Pass | State |
| 2026-06-18 | ASCENT RESOURCES - UTICA LLC - JACK HAMILTON SMF JF | Pass | State |
| 2026-06-17 | ASCENT RESOURCES - UTICA LLC - MINGO CRC JF | Pass | State |
| 2026-06-17 | ASCENT RESOURCES - UTICA LLC - MINGO CRC JF | Pass | State |
| 2026-06-17 | ASCENT RESOURCES - UTICA LLC - MINGO CRC JF | Pass | State |
| 2026-06-17 | ASCENT RESOURCES - UTICA LLC - AMBER WEL JF | Pass | State |
| 2026-06-17 | ASCENT RESOURCES - UTICA LLC - AMBER WEL JF | Pass | State |
| 2026-06-17 | ASCENT RESOURCES - UTICA LLC - AMBER WEL JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA, LLC - CROSS CREEK A | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA, LLC - CROSS CREEK A | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA, LLC - CROSS CREEK A | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - DICKSON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - DICKSON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - DICKSON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - GORDON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - GORDON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - GORDON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - GORDON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - GORDON CRC JF | Pass | State |
| 2026-06-16 | ASCENT RESOURCES - UTICA LLC - GORDON CRC JF | Pass | State |
| 2026-05-20 | ASCENT RESOURCES - UTICA LLC - ATHENA SMF JF | Pass | State |
| 2026-05-20 | ASCENT RESOURCES - UTICA LLC - ATHENA SMF JF | Pass | State |
| 2026-05-20 | ASCENT RESOURCES - UTICA LLC - ATHENA SMF JF | Pass | State |
| 2026-04-29 | EOG RESOURCES, INC. - PECKENS JN SAL 21-10-3 PAD | Pass | State |
| 2026-04-29 | EOG RESOURCES, INC. - PECKENS JN SAL 21-10-3 PAD | Pass | State |
| 2026-04-29 | EOG RESOURCES, INC. - PECKENS JN SAL 21-10-3 PAD | Pass | State |
| 2026-03-24 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | Pass | State |
| 2026-03-24 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | Pass | State |
| 2026-03-24 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | Pass | State |
| 2026-03-03 | GULFPORT APPALACHIA, LLC - SCHUBERT WELL PAD | Pass | State |
| 2026-03-03 | GULFPORT APPALACHIA, LLC - SCHUBERT WELL PAD | Pass | State |
| 2026-03-03 | GULFPORT APPALACHIA, LLC - SCHUBERT WELL PAD | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.